Continuing Part 3, in this fourth part you will learn about text file editing with nano text editor in the Terminal. It's crucial because among the basics is you must have ability to edit system configurations. Below you will find 10 exercises and followed by a summary. Happy exercising!

Continuing the second part, in this part you will learn how to combine two commands in one (called pipelining) and also to store data from memory into text file (called redirection). These two techniques are the basic of all Unix-like systems and applicable on all GNU/Linux distros. Go ahead and practice them all!

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